<template>
  <div
    class="ValidCode disabled-select"
    id="code"
    :style="`width:${width}; height:${height}`"
    @click="refreshCode"
  >
    <span
      v-for="(item, index) in codeList"
      :key="index"
      :style="getStyle(item)"
      >{{ item.code }}</span
    >
  </div>
</template>

<script>
export default {
  name: 'code',
  props: {
    width: {
      type: String,
      default: '100px'
    },
    height: {
      type: String,
      default: '35px'
    },
    length: {
      type: Number,
      default: 4
    }
  },
  data () {
    return {
      codeList: []
    }
  },
  mounted () {
    this.createdCode()
  },
  methods: {
    refreshCode () {
      this.createdCode()
    },
    createdCode () {
      let len = this.length
      let codeList = []
      let chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz'
      let charsLen = chars.length
      // 生成
      for (let i = 0; i < len; i++) {
        let rgb = [
          Math.round(Math.random() * 220),
          Math.round(Math.random() * 240),
          Math.round(Math.random() * 200)
        ]
        codeList.push({
          code: chars.charAt(Math.floor(Math.random() * charsLen)),
          color: `rgb(${rgb})`,
          fontSize: `1${[Math.floor(Math.random() * 10)]}px`,
          padding: `${[Math.floor(Math.random() * 10)]}px`,
          transform: `rotate(${
            Math.floor(Math.random() * 90) - Math.floor(Math.random() * 90)
          }deg)`
        })
      }
      // 指向
      this.codeList = codeList
      // 将当前数据派发出去
      this.$emit('update:value', codeList.map((item) => item.code).join(''))
    },
    getStyle (data) {
      return `color: ${data.color}; font-size: ${data.fontSize}; padding: ${data.padding}; transform: ${data.transform}`
    }
  }
}
</script>

<style scoped lang="less">
.ValidCode {
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  border: 1px solid #ddd;
  span {
    display: inline-block;
  }
}
</style>
